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Abstract #4338

Magnetization Prepared DREAM for Fast Flow-Robust B1+ Mapping

Peter Brnert 1,2 , Kay Nehrke 1 , and Jinnan Wang 3

1 Philips Research, Hamburg, Germany, 2 Radiology, LUMC, Leiden, Netherlands, 3 Philips Research North America, Briarcliff Manor, New York, United States

Fast and robust in vivo B1+ mapping is an essential prerequisite for multi-element transmit applications like RF-shimming and transmit SENSE. DREAM, a recently introduced B1+ mapping approach, is very fast and promising, allowing single shot B1+ mapping within a fraction of a second. However, DREAM might be sensitive to flow which potentially degrades the B1+ maps for the blood pool signal in large vessels and in the heart. In the present work this has been solved successfully by adding an efficient and robust magnetization preparation approach which is studied in detail here for high field applications.

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